package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.dto.DishDto;
import com.itheima.reggie.dto.SetmealDto;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Dish;
import com.itheima.reggie.entity.Setmeal;
import com.itheima.reggie.entity.SetmealDish;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.SetmealDishService;
import com.itheima.reggie.service.SetmealService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;
import java.util.List;
import java.util.stream.Collectors;

@RestController
@RequestMapping("/setmeal")
public class SetmealController {

    @Autowired
    private SetmealService setmealService;
    @Autowired
    private CategoryService categoryService;
    @Autowired
    private SetmealDishService setmealDishService;

    /**
     * 新增套餐
     * @param setmealDto
     * @return
     */
    @PostMapping
    public R<String> save(@RequestBody SetmealDto setmealDto) {
        setmealService.saveWithDish(setmealDto);
        return R.success("新增套餐成功");
    }

    /**
     * 套餐分页查询
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page,int pageSize,String name){
        //分页构造器对象
        Page<Setmeal> pageInfo=new Page<>(page,pageSize);
        Page<SetmealDto> dtoPage=new Page<>();

        LambdaQueryWrapper<Setmeal> queryWrapper = new LambdaQueryWrapper<>();
        //添加查询条件，根据name进行like模糊查询
        queryWrapper.like(name!=null,Setmeal::getName,name);
        //添加排序条件，根据更新时间降序排列
        queryWrapper.orderByDesc(Setmeal::getUpdateTime);
        setmealService.page(pageInfo,queryWrapper);
        ///对象拷贝
        BeanUtils.copyProperties(pageInfo,dtoPage,"records");
        List<Setmeal> records = pageInfo.getRecords();

        List<SetmealDto> list=records.stream().map((item)->{
            SetmealDto setmealDto=new SetmealDto();
            //对象拷贝
            BeanUtils.copyProperties(item,setmealDto);
            //分类id
            Long categoryId = item.getCategoryId();
            //根据分类id查询分类对象
            Category category = categoryService.getById(categoryId);
            if (category!=null){
                //分类名称
                String categoryName = category.getName();
                setmealDto.setCategoryName(categoryName);
            }
            return setmealDto;
        }).collect(Collectors.toList());

        dtoPage.setRecords(list);
        return R.success(dtoPage);
    }

    /**
     *删除套餐
     * @param ids
     * @return
     */
    @DeleteMapping
    public R<String> delete(@RequestParam List<Long> ids){
        setmealService.removeWithDish(ids);
        return  R.success("套餐数据删除成功");
    }

    /**
     * 批量修改
     * @param ids
     * @param request
     * @return
     */
    @PostMapping("/status/*")
    public R updateStatusByIds(@RequestParam(value = "ids") Long[] ids, HttpServletRequest request) {
        StringBuffer requestURL = request.getRequestURL();
        String[] split = requestURL.substring(requestURL.lastIndexOf("/")).split("/");
        int status = Integer.parseInt(split[1]);
        LambdaUpdateWrapper<Setmeal> qw = new LambdaUpdateWrapper<>();
        qw.set(Setmeal::getStatus, status);
        qw.set(Setmeal::getUpdateTime, LocalDateTime.now());
        qw.in(Setmeal::getId, ids);
        boolean b = setmealService.update(qw);
        if (status != 0) {
            return b ? R.success("批量停售成功") : R.error("批量停售失败");
        } else {
            return b ? R.success("批量起售成功") : R.error("批量起售失败");
        }
    }

    @GetMapping("/{id}")
    public R<Setmeal> getsetmealById(@PathVariable Long id) {
        Setmeal setmeal = setmealService.getById(id);
        LambdaQueryWrapper<SetmealDish> qw = new LambdaQueryWrapper<>();
        qw.eq(SetmealDish::getSetmealId, id);
        List<SetmealDish> list = setmealDishService.list(qw);
        SetmealDto setmealDto = new SetmealDto();
        BeanUtils.copyProperties(setmeal, setmealDto);
        setmealDto.setSetmealDishes(list);

        return R.success(setmealDto);

    }

    @PutMapping
    public R update(@RequestBody SetmealDto setmealDto) {
        setmealService.updateWithDish(setmealDto);
        return R.success("修改套餐成功");
    }

    /**
     * 根据条件查询套餐数据
     * @param setmeal
     * @return
     */


    public R<List<Setmeal>> list( Setmeal setmeal){
        LambdaQueryWrapper<Setmeal> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(setmeal.getCategoryId()!=null,Setmeal::getCategoryId,setmeal.getCategoryId());
        queryWrapper.eq(setmeal.getStatus()!=null,Setmeal::getStatus,setmeal.getStatus());
        queryWrapper.orderByDesc(Setmeal::getUpdateTime);
        List<Setmeal> list = setmealService.list(queryWrapper);
        return R.success(list);
    }
}

